added travis-ci config file
added jdk versions
added travis-ci current status icon to the readme page
Merge branch 'refactoring' of github.com:ccouturi/raven-java
Add Sentry appender for Logback logger
Clean
Add readme file
Indentation
Add Sentry appender for Logback logger
Change slf4j dependency scope.
merge branch
Merge branch 'rebase' of https://github.com/ccouturi/raven-java into ccouturi-rebase
Clean up logback README
Update raven-logback pom to use parent pom 2.0-SNAPSHOT